The EPS Foam Production Stages

Expanded Polystyrene foam commonly referred to as EPS, is a robust material that is utilized in a myriad of products for consumers. It is found almost everywhere, from your local food shop. 

For example plates cups, plates containers for food, etc, and in the nearby electronics shops Plastic utensils are made from Styrene CD cases, CD cases, and hangers for cloth are all made from Styrene. It's also a great insulation material.

The EPS foam in Hawaii is made up of tiny beads, which are known as granules. They're like sand in their appearance. For more information on EPS foam in Hawaii navigate the internet.

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To make an EP foam block of these small raw beads, they have to be "blown" into larger beads, approximately 50 times their original size. This is known as the pre-expansion procedure. Based on the amount of density needed and the desired density, the beads are then made by using steam in the expander machine, also known as a steamer. 

Expanders could be a basic manual machine where a worker inserts the raw material and then activates the steam. It could also be an automated machine that materials are blown onto in a controlled manner. In this phase, the beads, which can be as large as 50 times the size of their initial size – are known as pellets and are now ready to be molded.

Continuous pre-expanders run without pressure and come with an open-top tank for agitation in which the raw material is fed continuously from the bottom of the tank by an adjustable screw conveyor. 

Steam is also continuously fed into the pre-expanding area through openings that are located close to the top of the tank.